Drain valve for oil receptacles



oa. 13, 192s. 1,557,390

G. TOLK ET AL DRAIN VALVE FOR OIL RECEPTACLES Filn'd Jn. 19, 1924 l ORNEY Patented Oc'f. 13, 1925.

UNITED STATES 1,557,390 PATENT OFFICE.

GEORGE TOLK AND ALVIN H. BOSENBAUM, 0F BROOKLYN, NEW YORK; SAID ROSEN- BAUM ASSIGNOR TO SAID TOLK.

DRAIN VALVE FOR OIL RECEPTACLES.

Application led January 19, 1924. Serial No. 687,204.

To all whom t may concern:

Be it known that we, GEORGE TOLK and ALVIN H. RosENBAUM, both citizens of the United States, residing at New York city, borough of Brooklyn, in the county of Kings and State o f New York, have invented certain new and useful Improvements in Drain Valves for Oil Receptacles, of which the following is a specification.

This invention relates to manual control or manipulation of pet cocks used for the drainage of oil from containers such `las automobile crank casings, the control being had by the driver or operator while seated inl the usual place at the Wheel, and whereby he is relieved from the necessity of going or reaching beneath any part oi' the machine for manipulating the valve ornpet cock.

Among the objects of the invention, therefore, is to provide simple and easily manipulatable mechanism for the control of such valves in the manner indicated, the improvement including flexible and easily installed connections between the pet cock or valve and the instrument board or dash board, the liexible connections including a bendable tube or casing extending in any desired direction along or under the engine mechanism.

With the foregoing and other objects in view the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the saine parts in the several views, and in which- Figure 1 is a diagram of the engine portion of an automobile equipped with our improvement.

Fig. 2 is an enlarged sectional detail of the principal parts of the apparatus.

Fig. 3 1s an elevation o the valve body and parts attached thereto and with parts in section on the line 3 3 of Fi 2.

Referring now more specifically to the drawin s we show at 10 an automobile radiator having a pet cock or valve bod 11 secured in the bottom thereof for rainag purposes, said body having a vertical port 12 extending therethrough and having attachment nipples 13 and 13 at opposite ends and preferably of different sizes for eas application to receptacle bottoms of di erent makes. This body is furthermore provided with a transverse valve chamber 14 intersecting the port 12.

At the dash board or other suitable part 15 of the vehicle is fixed a guide sleeve 16, the means for attaching it being shown as a nipple 17 extending through a hole in the board y15 and threaded into the adjacent end of the sleeve.v A tool such as a wrench may be applied to the head 1 7 of the nipple for effecting this connection. The nipple has a smooth hole 18 formed therethrough for the shank of a screw 19 having a finger piece or head 20 adapted to bear against the nipple head and arranged for easy'rotation by the operators fingers.

Fitted slidably in the chamber 14: isa cylindrical plunger 21, one end of which is adapted to glide directly across the port 12 and so effect a cut olf for the luid. From the other end of the plunger extends a stem 22 within which is fixed in any suitable manner as by soldering or the like one end of a pull wire 23. A strong coil spring 211 surrounds the stem and bears at one end against the adjacent end of the plunger .and at its other end against the shouldered end of a hollow plug 25 secured to one side of the body 11 by any suitable means as by being tapped into a hole 26' formed therein and surrounding the valve chamber. The normal tendency of the spring 24 is to hold the plunger closed as shown in Fig. 2. By'

suitable means, however, connecting the wire to the screw 19, the operator by rotation of the screw may`withdraw the plunger' from its closed position to open the port 12. i The means shown for this purpose includes a c lindi'ical head 27 into which the'end of t e wire 23 is seated and secured by suitable means, preferably a set screw 28,ex tending laterally through a-slot 29 formed in the sleeve 16 and slidable lengthwise along the slot in practice.- The screw 19 is fitted into a'tlhreaded hole 30 formed aXiall in the head and while the set screw 28 ho ds the head from rotation, it is plain that a pull or rotation of the 'screw 19 will cause'the head and wire to be drawn toward the board 15 or toward the operator and so the plunger will be moved in the same direction to or toward its open position. When the screw is subsequently turned in the reverse direction, the spring 24e will act automatically to restore the plunger to its closed position, this movement being limited preferably by the head 27 coming into engagement with the end of the sleeve remote from the board 15.

The Wire 23 obviously may be of any desired length and extends in any suitable direction along or under any parts of the machine. Ne preferably, therefore, inclose the wire in a bendable tube 31 having its ends suitably fastened in the ends of the plug 25 and sleeve 16, as by set screws 32. Obviously' the wire and tube may be cut of suitable length for the fitting of the improvement to any desired type or construction of machine and for the valve body 11 to be attached either to the radiator bottom or the bottom of the crank casing for the drainage of the iiuid therefrom.

From the foregoing specific description of the mechanism, its method of operation and advantages may be briefly summarized as follows: To prevent freezing of the water or other cooling liquid in the radiator it is frequently desirable for the contents of the radiator to be drained therefrom to prevent the rupturing of the structure. This ought to be performed much ymore frequently than it is under ordinary circumstances and so with this improvement it may be accomplished whenever desired and in the most convenient manner and wherever the machine may happen to be standing or even while the machine is in operation along the road. The operator by rotation of the screw 19 may drain the water from the radiator either for storage purposes or for replenishing the radiator with water of a different temperature or quality so that no time will be lost and no inconvenience-accompanies the operation. The same members apply to the drainage of used or foul oil from the crank casing 33 with which the same connections may be made. Such expedient is indicated in Fig. 1 and'it will be understood that the same type 0f mechanism may be used for both plunger connections. VVe wish to point out also that the knob 20 at the end of the screw maybe regarded' as any kind of means for causing a draft on the wire or pull member 23, and' the same effect would be produced if the operator pulls directly upon such member.

Also, as shown herein the screw may 'be detached from the head 27 and carried in ones pocket or tool box except when the manipulation of the plungers is to be erformed, and the same screw might be use for either of the valve connections shown in Fig. 1. 1While the manual controlling means is shown fixed to the instrument board or dash board, it is obvious that the exibleconnections leading rearward and upward from the plungers might be carried to any convenient place for manipulation by the driver while seated at the usual place back of the wheel.

lVe claim:

l. ln an oil drain valve, the combination with a body and a valve plunger therein, of means for opening andvclosing said valve comprising a wire having one end secured to said valve, a head secured to the other end of the wire, a guide within which said head is movable for exert-ing a tension on said Wire to open said valve, a screw threaded into said head to move the same along the guide, and means engaging said head and co-operating with said guide to prevent rotation of said head when the screw is rotated, said head having a bore to receive an end of said wire, said means having likewise engagement through said head with the wire within the bore to secure the wire to said head.

2.' In an oil drain valve, the combination with a body and a valve plunger therein, of means for opening and closing said valve comprising a wire having one end secured to said valve, a head secured to the other end of the wire, a guide within which said head yis movable for exerting a tension on said wire to open the valve, said head having a bore to receive an end of said wire' and also having an axial socket remote from the Wire, a clamping member for securing the wire in the head` said clamping member extending laterally from the head and wire and co-operating withsaid guide to prevent rotation of said head in the guide, and a member projectable endwise into said head socket for drawing the same and the wire longitudinally of the guide, substantially as set forth.

In testimony whereof we affix our signatures.

GEORGE TOLK. ALVIN H. ROSENBAUM. 

